DT500-en-GB_v1.5 7/16
2
Introduction
Congratulations
on
your
purchase
of
the
Extech
Model
DT500
Laser
Distance
Finder.
This
meter
measures
Distance
up
to
70m
(230’)
and
calculates
Area
and
Volume.
In
addition,
the
DT500
includes
a
laser
pointer
for
accurate
targeting.
This
meter
is
shipped
fully
tested
and
calibrated
and,
with
proper
use,
will
provide
years
of
reliable
service.
Please
visit
our
website
(www.extech.com)
to
check
for
the
latest
version
of
this
User
Guide,
Product
Updates,
and
Customer
Support.
Safety
Instructions
This
meter
has
been
designed
for
safe
use,
but
must
be
operated
with
caution.
WARNING:
Do
not
directly
view
or
direct
the
laser
pointer
at
an
eye.
Low
power
visible
lasers
do
not
normally
present
a
hazard,
but
may
present
some
potential
for
hazard
if
viewed
directly
for
extended
periods
of
time.
Laser
classification
(Class
2)
The
DT500
produces
a
visible
Class
2
laser
beam
from
the
top
of
the
instrument.
Do
not
stare
into
the
laser
beam
or
direct
the
beam
toward
anyone’s
eyes.
Eye
protection
is
normally
an
automatic
response
(‘blink
reflex’,
for
example).
Warning:
Do
not
look
directly
into
the
laser
beam
using
optical
aids
such
as
binoculars
or
telescopes.
This
can
create
a
hazard.
Permitted
Uses
Measure
Distances
Compute
Area
and
Volume
Prohibited
Uses
Exceeding
the
specified
measurement
limits
Compromising
or
deactivating
the
safety
systems
built
into
the
meter
Removal
of
hazard
or
explanatory
labels
affixed
to
the
meter
Modifying
or
converting
the
instrument
Using
third
party
accessories
Operation
on
scaffolding
or
ladders
without
proper
safety
precautions
Measuring
near
machines
that
are
operating
or
near
parts
of
machine
installations
that
are
unprotected
Aiming
the
meter
into
the
sunlight
Outdoor
measurements
or
measurements
on
roads,
near
construction
sites,
etc.
without
adequate
safeguards
